What do i have?
I have found a set of 6x cilinder heads, it seems to be correct for ‘72 and 73 911S with casting number 911.104.307.1R
Can anyone confirm?
Attachment 636167
Attachment 636168
Printable View
What do i have?
I have found a set of 6x cilinder heads, it seems to be correct for ‘72 and 73 911S with casting number 911.104.307.1R
Can anyone confirm?
Attachment 636167
Attachment 636168
Moved to Technical. Good luck with your search for info.
Thanks Peter!
There was a thread about cylinder heads either here or on the bird's forum with someone having compiled a excel sheet of cylinder heads casting number and specs.
It ain't complete and I wouldn't want to share publicly a work that isn't mine without being able to give proper credit to the person.
Your casting number isn't listed in it though.
Given the dates and the "307" I would think this might be some "S" heads. Measurement of the intake and exhaust ports if they are original would help a lot.
Just as a reference point: 911.104.307.0R casting were 1970 "S" heads, the records I have are late 69 production (for 2,2L).
Ports measurements; Intake: 36mm Exhaust: 35mm
1972 S would be 36/36 from the file, but I don't have any prints from Porsche about this (as there were up to 1971).
Good luck